• Have you tried out dark mode?! Scroll to the bottom of any page to find a sun or moon icon to turn dark mode on or off!

diy solar

diy solar

Most reacted posts

  • Post in thread: Connectorize Nickel Strips?

    Different power tool batteries have different BMSs, as well as connector to connect to their brand of power tools. So the only thing that can be modular between one brand and the other is the actual cells. I know that there are converters to change for exmaple the Makita connector to a Milwaukee...
  • Post in thread: Hole in PCB for BMS not Right Size for Current???

    Hello Freinds I have a power tool BMS whose rated continuous discharge current is 35 A. So per Matador's ampacity table that is cited on these forums in many places, 0.1 mm thick by 10 mm wide strip, 13 of them stacked would give me 36.48 A. Now the B- and B+ holes within the PCB, can't fit...
  • Post in thread: Cells with different capacities in parallel/series ok?

    I have a couple of questions with regards to using different model cells of different capacities within a single battery pack, but the same chemistry and at the same voltage. Note I am NOT suggesting that anybody does this or does anything unsafe. I'm simply asking a question to understand a...
  • Post in thread: Busbar Ampacity Calculation for DC Current

    I see this formula for ampacity of busbar for DC current I_CCC = K*busbar width*bus bar thickness Is it really this simple? Where K is a constant depending on if you are using copper or aluminum. This equation seems to simple to me. Additionally, I can't find anything with regards to the...
  • Post in thread: Current Carrying Capability of Nickel Strips - Help Understanding

    Thank you for the replies! I'm planning on using plain nickel strips. I think you might be right about length not being used for resistance calculations for DC circuits. Could you please elaborate a bit on why the length is left out of the resistance calculations though please? I was always...
  • Post in thread: Current Carrying Capability of Nickel Strips - Help Understanding

    So I've gone through the Copper Bus Bar book. In my case, I'm using a battery and not an inverter. So DC only. Section 2.0 Current-Carrrying Capacity of Busbars Section 2.2.2 Heat Generated by a Conductor Appears to be the section of interest. So in my theoretical case of width of 5 mm width...
  • Post in thread: Hole in PCB for BMS not Right Size for Current???

    What is the risk? Do you have a good connector that might work?
  • Post in thread: Current Carrying Capability of Nickel Strips - Help Understanding

    So I've made some more progress. Equation 1 from this source: http://www.electrician2.com/articles/ampacity.htm The term "thermal resistance" is used in this source. Trying to search for "thermal resistance of air" does not lead to much. The lack of parantheeses for units of measurent of...
  • Post in thread: Current Carrying Capability of Nickel Strips - Help Understanding

    I'm simply trying to understand how to select nickel strip for my battery pack. Note that I'm just simply trying to understand the math here only and the concepts behind selecting nickel strips, and nothing more. I'm not suggesting anyone do anything unsafe. I'm building a 5S3P Li-Ion pack from...

diy solar

diy solar
Back
Top